noun
plural drones
[count] :a deep continuous sound :hum
usually singular
verb
drones; droned; droning
[no obj] :to make a continuous low humming sound
drone on
[phrasal verb] informal :to speak for a long time in a dull voice without saying anything interesting
noun
plural drones
[count] a type of male bee that does not gather honey
chiefly US informal :a person who does work that is boring and not very important